Dice better start delivering finished games first, if you ask me. I am so tired on all the patches we usually need to enjoy our hardware, and getting trolled by game console lovers all the time.
So, either get the dx11 version right, and have dx12 support as a gimmick feature, or release the game later with actual dx12 performance gains.
I have great expectations from a studio like DICE (not from ea...), but wanna bet on what we will get if frostbite games are released as soon as early 2016 ?
I think DICE should go back to the point when battlefield was at its prime, Battlefield 2, single-player mode was beast. The stories for the games after it are a waste of investment for DICE in my opinion.